Why is my normalmap rippled and pixelated?
There is a Mirror modifier on the model on the X and Y axis. So you have four parts UV mapped to the same place after you export( I'm assuming you had the "Apply modifiers" option checked). The artifacts are "layering" caused by the normals being baked four times to the same area. Either apply the modifier and remap the UVs, or export without the modifier applied and bake.